Search issues on a collection with multiple arrays. easy-search

With the following code I get a correct count of items (cursor.count) but it reverts to 0 at the final log. However, no actual documents seems to ever be returned (cursor.fetch). It does work if I only have one field that is an array or if I only have the four “addresses” fields that are arrays.

ContactsIndex = new EasySearch.Index({
  collection: Contacts,
  fields: [
  engine: new EasySearch.MongoDB()
Tracker.autorun(function () {
      cursor ='Marie');